Roger Bowen (born May 25, 1932 – died February 16, 1996) was an American comedic actor and novelist, known for his portrayal of Lieutenant Colonel Henry Blake in the 1970 film MASH. He often portrayed roles as a stuffy defender of the upper class and had regular roles on a number of television series. His successful acting career aside, Bowen always considered himself a writer who only moonlighted as an actor. He wrote eleven novels (including Just Like a Movie) as well as sketches for Broadway and television. He was also one of the co-founders of Chicago's famed comedy and acting troupe The Second City.